Replace OVERRIDE->override and FINAL->final since we now require C++11.

test/unittests/compiler/liveness-analyzer-unittest.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/js-graph.h"
 #include "src/compiler/linkage.h"
 #include "src/compiler/liveness-analyzer.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/state-values-utils.h"
 #include "test/unittests/compiler/graph-unittest.h"
@@ skipping 61 matching lines @@
 
   class CheckpointMatcher : public MatcherInterface<Node*> {
    public:
     explicit CheckpointMatcher(const char* liveness, Node* empty_values,
                                int locals_count, Node* replacement)
         : liveness_(liveness),
           empty_values_(empty_values),
           locals_count_(locals_count),
           replacement_(replacement) {}
 
-    void DescribeTo(std::ostream* os) const OVERRIDE {
+    void DescribeTo(std::ostream* os) const override {
       *os << "is a frame state with '" << liveness_
           << "' liveness, empty "
              "parameters and empty expression stack";
     }
 
     bool MatchAndExplain(Node* frame_state,
-                         MatchResultListener* listener) const OVERRIDE {
+                         MatchResultListener* listener) const override {
       if (frame_state == NULL) {
         *listener << "which is NULL";
         return false;
       }
       DCHECK(frame_state->opcode() == IrOpcode::kFrameState);
 
       FrameStateCallInfo state_info =
           OpParameter<FrameStateCallInfo>(frame_state);
       int ast_num = state_info.bailout_id().ToInt();
       int first_const = intconst_from_bailout_id(ast_num, locals_count_);
@@ skipping 264 matching lines @@
   EXPECT_THAT(c1_in_loop, IsCheckpointModuloLiveness(".L.L"));
   EXPECT_THAT(c2_in_loop, IsCheckpointModuloLiveness("LL.L"));
 
   EXPECT_THAT(c1_end, IsCheckpointModuloLiveness(".LL."));
   EXPECT_THAT(c2_end, IsCheckpointModuloLiveness("...."));
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8